B1019

B1017 - B1022 OCCUPANT CLASSIFICATION SYSTEM





Description

DTC B1017 - B1022 OCCUPANT CLASSIFICATION SYSTEM (OCS)
The OCS control unit is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit will monitor the OCS for failures and interruptions in communication between the OCS control unit and the air bag diagnosis sensor unit.

PART LOCATION
Locations.




DTC Logic

DTC DETECTION LOGIC

With CONSULT-III






Without CONSULT-III






DTC CONFIRMATION PROCEDURE (With CONSULT-III)
1.INSPECTION START
Turn ignition switch ON.
- GO TO 2.
2.CHECK SELF-DIAG RESULT
Check for the DTC on CONSULT-III.
Is the DTC detected?
YES - SEE Diagnosis Procedure (Component Diagnosis).
NO - Inspection End.

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.IGNITION SWITCH
Turn ignition switch ON.
- GO TO 2
2.IGNITION SWITCH
After air bag warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
- GO TO 3
3.WAIT TIME
Wait more than 3 seconds.
- GO TO 4
4.REPEAT STEPS
Repeat steps 1 to 3 twice.
- GO TO 5
5.IGNITION SWITCH
Turn ignition switch ON.
- GO TO 6
6.DIAGNOSTIC MODE
SRS system is now in diagnostic mode and AIR BAG warning lamp flashes. Locations.
- END




Diagnosis Procedure (Component Diagnosis)
Recheck SRS after each corrective action.
1.CHECK CURRENT DTC
Does CONSULT-III indicate B1018, B1019, B1020 or B1022?
YES or NO
YES - GO TO 2
NO - GO TO 13
2.HARNESS CONNECTOR
Is there any visible damage to the OCS sub-harness connector (DTC B1022) or to the belt tension sensor connector (DTC B1019)?
YES or NO
YES - Replace the harness.
NO - GO TO 3
3.WIRING HARNESS
Is there any visible damage to the body or seat sub harness?
YES or NO
YES - Replace the harness.
NO - GO TO 4
4.CHECK CURRENT DTC
Does CONSULT-III indicate B1022?
YES or NO
YES - GO TO 5
NO - GO TO 6
5.OCS CONTROL UNIT HARNESS CONNECTOR
Is the OCS control unit or body harness connector disconnected?
YES or NO
YES - Connect the harness. Clear the DTC.
NO - GO TO 13
6.CHECK CURRENT DTC
Does CONSULT-III indicate B1018?
YES or NO
YES - GO TO 7
NO - GO TO 8
7.OCS SENSOR HARNESS CONNECTOR
Is the OCS sensor harness connector disconnected?
YES or NO
YES - Connect the harness. Clear the DTC.
NO - GO TO 8
8.CHECK CURRENT DTC
Does CONSULT-III indicate B1020?
YES or NO
YES - GO TO 9
NO - GO TO 10
9.BELT TENSION SENSOR
Inspect the belt tension sensor, belt tension sensor connector and harness.
Are the inspection results normal?
YES - GO TO 10
NO - GO TO 12
10.CHECK CURRENT DTC
Does CONSULT-III indicate B1019?
YES or NO
YES - GO TO 11
NO - GO TO 12
11.BELT TENSION SENSOR HARNESS CONNECTOR
Is the belt tension sensor harness connector disconnected?
YES or NO
YES - Connect the harness. Clear the DTC.
NO - GO TO 12
12.REPLACE RH FRONT SEAT BELT ASSEMBLY
Replace the RH front seat belt assembly.
- GO TO 13
13.REPLACE RH FRONT SEAT CUSHION ASSEMBLY
Replace the RH front seat cushion assembly. Removal and Installation.
- GO TO 14
14.AIR BAG DIAGNOSIS SENSOR UNIT
Replace the air bag diagnosis sensor unit. Service and Repair.
- END.